Home / 152,403.02-210,319.55-86,990.52

Finding the Fourth Proportional to 152,403.02, 210,319.55 and 86,990.52

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Solution

The fourth proportional to 152,403.02, 210,319.55 and 86,990.52 is: 120,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,403.02 : 210,319.55 = 86,990.52 : x
  2. Step 2: Convert to fraction form
    152,403.02/210,319.55 = 86,990.52/x
  3. Step 3: Cross multiply
    152,403.02x = 210,319.55 × 86,990.52
  4. Step 4: Simplify right side
    152,403.02x = 18,295,806,585.71
  5. Step 5: Solve for x
    x = 18,295,806,585.71/152,403.02
  6. Step 6: Final answer
    x = 120,048.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.